create daemon

thrower_daemon/node_modules/nostr-tools/lib/esm/nip94.js

@@ -0,0 +1,119 @@
+// kinds.ts
+var FileMetadata = 1063;
+
+// nip94.ts
+function generateEventTemplate(fileMetadata) {
+  const eventTemplate = {
+    content: fileMetadata.content,
+    created_at: Math.floor(Date.now() / 1e3),
+    kind: FileMetadata,
+    tags: [
+      ["url", fileMetadata.url],
+      ["m", fileMetadata.m],
+      ["x", fileMetadata.x],
+      ["ox", fileMetadata.ox]
+    ]
+  };
+  if (fileMetadata.size)
+    eventTemplate.tags.push(["size", fileMetadata.size]);
+  if (fileMetadata.dim)
+    eventTemplate.tags.push(["dim", fileMetadata.dim]);
+  if (fileMetadata.i)
+    eventTemplate.tags.push(["i", fileMetadata.i]);
+  if (fileMetadata.blurhash)
+    eventTemplate.tags.push(["blurhash", fileMetadata.blurhash]);
+  if (fileMetadata.thumb)
+    eventTemplate.tags.push(["thumb", fileMetadata.thumb]);
+  if (fileMetadata.image)
+    eventTemplate.tags.push(["image", fileMetadata.image]);
+  if (fileMetadata.summary)
+    eventTemplate.tags.push(["summary", fileMetadata.summary]);
+  if (fileMetadata.alt)
+    eventTemplate.tags.push(["alt", fileMetadata.alt]);
+  if (fileMetadata.fallback)
+    fileMetadata.fallback.forEach((url) => eventTemplate.tags.push(["fallback", url]));
+  return eventTemplate;
+}
+function validateEvent(event) {
+  if (event.kind !== FileMetadata)
+    return false;
+  if (!event.content)
+    return false;
+  const requiredTags = ["url", "m", "x", "ox"];
+  for (const tag of requiredTags) {
+    if (!event.tags.find(([t]) => t == tag))
+      return false;
+  }
+  const sizeTag = event.tags.find(([t]) => t == "size");
+  if (sizeTag && isNaN(Number(sizeTag[1])))
+    return false;
+  const dimTag = event.tags.find(([t]) => t == "dim");
+  if (dimTag && !dimTag[1].match(/^\d+x\d+$/))
+    return false;
+  return true;
+}
+function parseEvent(event) {
+  if (!validateEvent(event)) {
+    throw new Error("Invalid event");
+  }
+  const fileMetadata = {
+    content: event.content,
+    url: "",
+    m: "",
+    x: "",
+    ox: ""
+  };
+  for (const [tag, value] of event.tags) {
+    switch (tag) {
+      case "url":
+        fileMetadata.url = value;
+        break;
+      case "m":
+        fileMetadata.m = value;
+        break;
+      case "x":
+        fileMetadata.x = value;
+        break;
+      case "ox":
+        fileMetadata.ox = value;
+        break;
+      case "size":
+        fileMetadata.size = value;
+        break;
+      case "dim":
+        fileMetadata.dim = value;
+        break;
+      case "magnet":
+        fileMetadata.magnet = value;
+        break;
+      case "i":
+        fileMetadata.i = value;
+        break;
+      case "blurhash":
+        fileMetadata.blurhash = value;
+        break;
+      case "thumb":
+        fileMetadata.thumb = value;
+        break;
+      case "image":
+        fileMetadata.image = value;
+        break;
+      case "summary":
+        fileMetadata.summary = value;
+        break;
+      case "alt":
+        fileMetadata.alt = value;
+        break;
+      case "fallback":
+        fileMetadata.fallback ??= [];
+        fileMetadata.fallback.push(value);
+        break;
+    }
+  }
+  return fileMetadata;
+}
+export {
+  generateEventTemplate,
+  parseEvent,
+  validateEvent
+};